/Engine/Plugins/Experimental/Mutable/Source/CustomizableObject/Classes/MuCO/CustomizableObject.h
Add merged skeleton to the cache. It'll be cached as a TWeakObjPtr.
void CacheMergedSkeleton ( const int32 ComponentIndex, const [TArray](API\Runtime\Core\Containers\TArray)< uint16 > & SkeletonIds, [TObjectPtr](API\Runtime\Core\Delegates\TObjectPtr)< [USkeleton](API\Runtime\Engine\Animation\USkeleton) > Skeleton )